Pinch Style Sealers close multiwall paper bags with product weights ranging from 20 to 100 lbs. A pinch style bag features a stepped end to expose the plies of a multiwall bag.  Hot melt is pre-applied by the bag manufacturer.  The final closure involves reactivation of the hot melt and folding the stepped end over to bond with the face of the bag.  Pinch style bags may also feature a separate inner liner that is heat sealed in addition to the pinch closure.  This results in a hermetically sealed bag and is commonly used in toxic products or products that are hydroscopic.